1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
2 years ago
11

ANSWER ASAP!! remember to show work​

Mathematics
1 answer:
marusya05 [52]2 years ago
6 0

Answer:

1. 7x+5y=19    

(+)-7x-2y=-16       step one

____________

\frac{3y}{3\\}=\frac{3}{3}                   step two

y=1

____________

since you have the value of y u can plug it in in either of the equations.

7x+5(1)=19        step three

____________

7x+5-5=19-5     step four

____________

\frac{7x}{7}=\frac{14}{7}

x=2                     step five

____________

You can check whether the answers are correct by plugging them back in.

7(2)+5(1)=19

14+5=19

19 equals 19 so it checks.

You can do the same thing for the rest.

You might be interested in
Which expression is equivalent to b less than 50?<br> A 50b<br> B b - 50<br> C 50/b<br> D 50 - b
sesenic [268]

Answer:

50-b

Step-by-step explanation:

Whatever letter/number it begins with, it's that minus the second letter/number.

8 0
3 years ago
We probably couldn't go to all the stars because they're too far away. It would take a long time to get there.
Dvinal [7]

Answer:

The correct answer is B. Contain generalizations and contractions.

Step-by-step explanation:

A generalization occurs when a specific idea is applied to a general category, in simple terms it occurs if a person states something always occur because this person saw it once. In this case, generalization occurs as this person affirms all stars are too far away and thus it will take a long time to get to those stars, however not all stars are as far away as this person believes and this does not mean it will take a long time to get there as new technology can be created, thus, this statement is not true and need revision. On the other hand, contractions refers to the process of shortening words by putting them together, this can be seen in "couldn't" ( could + not) and  "they're" (they + are), contradictions are not correct as they should not be used in formal language and be avoided, thus, contradictions also need to be revised.

4 0
3 years ago
I’ll give Brainly est help. B
natulia [17]

Answer:

C) 99 + 3x

Step-by-step explanation:

Since it's always going to cost 99, it'll stay like that since it's a constant

Since it's 3 PER person, that means 3 will have a variable: 3x

5 0
3 years ago
Help pleaseeeee!!!!! i stg if no one answers correctly im gonna have another mental breakdown
Afina-wow [57]

Answer:

-6x⁶ + 4x⁴ - 3x³ + 4x² + 12

Step-by-step explanation:

To write an equation in standard form, you want to arrange the terms from increasing to decreasing powers/exponents.

given: 4x² - 6x⁶ + 2x³ + 12 - 5x³+ 4x⁴

First, lets arrange like terms together. Put the terms with the same exponent together.

2x³ - 5x³ + 4x² - 6x⁶ + 12 + 4x⁴

Now combine the terms with the same exponent by subtracting 5x³ from 2x³.

-3x³ + 4x² - 6x⁶ + 12 + 4x⁴

Now let's arrange the terms from increasing to decreasing powers/exponents.

-6x⁶ + 4x⁴ - 3x³ + 4x² + 12

This is your equation in standard form.

Hope this helps!

3 0
3 years ago
Given that abc is congruent to def, ac=21x-19 and df=3x+17 solve for x
rewona [7]
21x-19=3x+17 
18x=36
x=2
5 0
3 years ago
Other questions:
  • Solve (√7-√3)^2 <br><br> A.) 10-2√21 <br> B.) 4-2√21<br> C. 4<br> D. -4
    10·1 answer
  • What is the domain of g(x)?​
    9·1 answer
  • Solve using trigonometry. Round to the nearest degree.<br> 16<br> х<br> 30
    10·1 answer
  • Find two numbers whose sum is -2 and whose difference is -8
    13·1 answer
  • When converting between the mixed numbers and improper fractions, the ____always stays the same
    11·1 answer
  • Find the value of x such that the data set has the given mean.
    7·1 answer
  • Shawn thinks that helium prices next year might increase by 10%. He plans to buy 7 small balloons and x large balloons. He creat
    11·1 answer
  • Find the approximate sum of the series shown below.
    12·1 answer
  • 1<br> Find the slope of the line y = 1/4 X+9.
    9·1 answer
  • 1. Write an expression equivalent to:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!